| Call Number (LC) | Title | Results |
|---|---|---|
| P 10.10:W 99/4 | Alphabetical scheme of Wyoming for use of publishers in distribution of 2nd-class mail. | 1 |
| P 10.10:W 99 to P 10.10:W 99/4 | Alphabetical scheme of Wyoming for use of publishers in distribution of 2nd-class mail | 1 |
| P10.13-1 | Postal laws and regulations applicable to Railway Mail Service. | 1 |
| P10.13-2 | Postal laws and regulations applicable to Railway Mail Service. | 1 |
| P10.13-3 | Postal laws and regulations applicable to railway postal transfer and terminal railway postal clerks. | 1 |
| P10.13-4 | Postal laws and regulations applicable to Railway Mail Service. | 1 |
| P 10.13:915 |
Postal laws and regulations applicable to Railway Mail Service Postal laws and regulations applicable to Railway Mail Service. |
2 |
| P 10.13:920 |
Postal laws and regulations applicable to Railway Mail Service Postal laws and regulations applicable to Railway Mail Service. |
2 |
| P 10.13:924 |
Postal laws and regulations applicable to Railway Mail Service Postal laws and regulations applicable to railway postal transfer and terminal railway postal clerks. |
2 |
| P 10.13:929 |
Postal laws and regulations applicable to Railway Mail Service Postal laws and regulations applicable to Railway Mail Service. |
2 |
| P 10.13:938 | Postal Laws and Regulations, Seniority Rules, Service Rating System, and Space Rulings, Applicable to the Railway Mail Service, 1938 Revisions. | 1 |
| P10.13..938 | Postal Laws and Regulations, Seniority Rules, Service Rating System, and Space Rulings, Applicable to the Railway Mail Service, 1938 Revisions. | 1 |
| P 10.13:941 | Postal laws and regulations, seniority rules, service rating system and space rulings applicable to the Railway Mail Service, 1941. | 1 |
| P10.2-3 | Book of instructions for use of chief clerks, Railway Mail Service. | 1 |
| P10.2-4 | Instructions to substitute railway postal clerks. | 1 |
| P10.2-5 | Questions for examinations on postal laws and regulations applicable to Railway Mail Service. | 1 |
| P10.2-6.1 | Holiday mails. | 1 |
| P10.2-6.2 | Holiday mails. | 1 |
| P10.2-6.3 | Holiday mails. | 1 |
| P10.2-7 | Alphabetical scheme for overland dispatch of mail for Republic of Mexico. | 1 |
