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The image displays Italian postage stamps from the "Coin of Syracuse" series.
Country of Origin: Italy
Denomination: 100 Lire
Design: Features a depiction of a classical Greek coin from Syracuse
Era: Issued between the 1950s and 1960s
Watermark: Known to have star watermarks
Ben Franklin Rare Vintage Mint One Cent Green #604 stamp.
#876 - M 67 3c FAMOUS AMERICAN SCIENTISTS - LUTHER BURBANK FDC 1940. This is the 1st Sonoma County Philatelic Society cachet. Includes insert pamphlet. First day issue 4/17/1940.
The image shows a pamphlet for the Luther Burbank Home and Gardens in Santa Rosa, California.
This historic site honors the life and work of Luther Burbank, a renowned American horticulturist known for developing over 800 new plant varieties, including the Burbank potato and Shasta daisy.
The site includes Burbank's restored Victorian home, a greenhouse, and gardens showcasing many of his plant creations.
It is located in Santa Rosa, California, at the intersection of Santa Rosa Avenue and Sonoma Avenue.
The Luther Burbank Home & Gardens is designated as a National Historic Landmark and a California Historical Landmark.
Comet Kohoutek (formally designated C/1973 E1 and formerly as 1973 XII and 1973f)[c] is a comet that passed close to the Sun towards the end of 1973. Early predictions of the comet's peak brightness suggested that it had the potential to become one of the brightest comets of the 20th century, capturing the attention of the wider public and the press and earning the comet the moniker of "Comet of the Century". Although Kohoutek became rather bright, the comet was ultimately far dimmer than the optimistic projections: its apparent magnitude peaked at only –3 (as opposed to predictions of roughly magnitude –10) and it was visible for only a short period, quickly dimming below naked-eye visibility by the end of January 1974.[d]
The comet was discovered by and named after Luboš Kohoutek at the Hamburg Observatory on 18 March 1973; Kohoutek had been searching for Biela's Comet and had serendipitously discovered his eponymous comet while reviewing photographic plates for a different object. The comet was discovered farther away from the Sun than any previous comet. Conventional practices for predicting comet brightness led to generous projections of Comet Kohoutek's luminosity towards the end of 1973 and the beginning of 1974, leading to great anticipation within both scientific circles and the general public. Comet Kohoutek reached perihelion on 28 December 1973. Though the comet was then at its brightest, it could only be observed by scientific instrumentation and astronauts on Skylab. For most ground observers, Kohoutek only reached as bright as magnitude 0 when it emerged from the Sun's glare in January 1974. It quickly faded beyond naked-eye visibility later that month and was last observed in November 1974. Due to its underwhelming brightness after intense publicity, Kohoutek became synonymous with spectacular disappointment.
Because of its early detection and unique characteristics, numerous scientific assets were dedicated to observing Kohoutek during its 1973–74 traversal of the inner Solar System, making Kohoutek the most well-studied comet at the time; the resulting findings significantly advanced the understanding of comets. The identification of larger and more complex molecules emanating from Kohoutek alongside related but simpler chemical species confirmed the hypothesis that comets were composed of larger molecules that dissociated into simpler products. The significant presence of gasses and plasma expelled from Kohoutek supported the longstanding "dirty snowball" hypothesis concerning the composition of comet nuclei. The detection of water,[e] methyl cyanide, hydrogen cyanide, and silicon in Kohoutek were the first time such chemical species were observed in any comet. Its underwhelming display challenged longstanding assumptions regarding the light curve of similar comets entering the inner Solar System.
Kohoutek's highly eccentric orbit preceding its 1973 perihelion suggests that it may have been formed early in the formation of the Solar System or it may have originated from a different planetary system. Its orbital period may have been initially in the order of several million years, or its 1973 apparition may have been its first trek into the inner Solar System. Its nucleus has an estimated average radius of 2.1 km (1.3 mi).[7]
Canadian stamp booklet from 1963, specifically the #BK53 Queen Elizabeth II Cameo Issue booklet. The text on the cover highlights the "Postal Zoning Speeds Delivery" initiative and encourages the use of zone numbers for mail destined for major Canadian cities like Quebec, Montreal, Ottawa, Toronto, Winnipeg, and Vancouver.
Key details about this booklet:
Issue: Queen Elizabeth II, Cameo Issue (1962-1967).
Date: February 4, 1963.
Contents: Booklet of 6 stamps, including 5 x 1¢ and 1 x 4¢ stamps (Scott #401a and #404a in cover).
Purpose: The cover promotes the use of postal zoning to expedite mail delivery to designated cities in Canada.
This stamp was issued on December 1, 1993, coinciding with World AIDS Day, an international day dedicated to raising awareness about the AIDS pandemic and remembering those who have died from the disease.
Design:
The red ribbon design was created by artist Tom Mann.
