Author:F.R. CURTIS

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1897 - 1959 USA PATENTS: EARLY ARCHIVE OF 24 PATENTS FOR ELECTRICITY, GENERATORS, TURBINES AND GOVERNORS

By: F.M. RITES, R.D. MERSHON, J.A. LIGHTHIPE, C.G. CURTIS, J. WILKINSON, H. KELLER, S.D. SPRONG, J.G. ACEVES, H.E. WARREN +++

Price: $985.99

Publisher: Washington DC, USA, 1897

Seller ID: 000728

Condition: Very Good


On offer is an old cloth-bound notebook (9"x12") containing the stored patent papers for twenty-four (24) mechanical inventions from 1897 thru 1965 with the majority in the first 20 years of the century. Documents were maintained by an aero-space firm in Massachusetts that went out of business in the nineties but whose name we do not know. Papers include diagrams, descriptions, technical data and patent info for devices that were likely issued to, purchased by or owned by the company over many years. Patents include: Governing Device for Fluid Pressure Motors, 1897 (Patent # 582,233)... View more info

1860s - 1880s COLLECTION OF ORIGINAL POSTMARKS: A BOOK OF AMERICAN POSTAL HISTORY

By: F.R. CURTIS

Price: $2,285.99

Publisher: NAUBUC, CONNECTICUT, 1860

Seller ID: 0001777

Condition: Good


On offer is a super, unique and original 19th Century philatelic relic illustrating the growth of the U.S. postal system being an early U.S.A. postmark collection. This antique, novel book of 70+ pages of postmarks of varying density and ranging from the early 1860s through 1880s over approximately 96 hand numbered pages shows an ownership stamp on the fep stating 'F.R. Curtis, Naubuc, Ct.' The rare collection even includes some precious Confederate marks and many State capitals. As one would expect given the size of some States the relative quantity of marks in the album demonstrate the growt... View more info