Hi Tom, can I assume you live in the land of centimeter's?

Thanks for the photos. Interesting design on that old Orpheus. The Czechloslovakia origin makes sense from what I know. Looks like there is a leadpipe extension? Different wearing I see and on some of the other tubing. The country of origin on yours can be sort of dated by the political configuration of the country at the time it was made. I can't recall exactly the differences, but there has been some references in other posts or data resources. Czechoslovakia was formed in 1918. I like the short bell design of the horn.
My no-name , no serial Czech small bore trumpet has "Czechloslovakia" stamped on the underside ot the lead pipe. I would estimate it dates to the 30's. I once had another Czech import trumpet that had "Czechoslovakia" stamped in a circular fashion around the end of the lead pipe, near where the MP inserts. Czech companies made many instruments that were exported to many countries to sell under many names.
Whether it is worth it to silverplate it would be a personal decision of yours. Economically I would say, no. If having the horn restored and plated would give you something you would treasure for it's playing qualities and asthetics, etc. it may be "worth it".
__________________
Dave Rafferty
07 Barrington Trumpet,
1972 Reynolds Medalist
55 Besson 8-10 trumpet
55 Roth by Reynolds Cornet
73 Olds Ambassador Cornet
30's Czech small bore Trumpet
Getzen 80 cornet,
33 American Standard cornet
www.kalamazooconcertband.org