airmail flight cover: First day of issue, Ryan NYP stamp
| Date: | 05/20/1977 |
| Medium: | Paper, ink |
| Credit Line: | Gift of Thomas G. Dragges in memory of Robert May |
| Accession Number: | 2001.109.299 |
| Dimensions: | 3 1/2 x 6 1/2 inches (8.9 x 16.5 cm) |
| Collection: | Aviation Archive |
| Category: | Philately |
| Subcategory: | Airmail Flight Cover |
| aircraft: | Ryan NYP Spirit of St. Louis , Ryan NYP |
| company: | Ryan |
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<div id="sfomuseum-image-1746512123" class="sfomuseum-image" style="max-width:640px; margin:auto 0;">
<a href="https://collection.sfomuseum.org/objects/1511924071/"><img src="https://static.sfomuseum.org/media/174/651/212/3/1746512123_axyIdRAwHed5gxkjajYPqnAZqOG6Nz5p_z.jpg" alt="airmail flight cover: First day of issue, Ryan NYP stamp" /></a>
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<div><strong>Airmail flight cover: First day of issue, Ryan NYP stamp</strong> 05/20/1977</div>
<div>Gift of Thomas G. Dragges in memory of Robert May</div>
<div>Collection of SFO Museum <a href="https://collection.sfomuseum.org/objects/1511924071/">2001.109.299</a></div>
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{{cite web |url=https://collection.sfomuseum.org/objects/1511924071/ |title=airmail flight cover: First day of issue, Ryan NYP stamp |author=San Francisco International Airport Museum |accessdate=11 January 2026 |publisher=San Francisco International Airport Museum}}















































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