Yeovil Obliterator, Duplexes and a First Day Cover

Yeovil was Post Office number "929.  Here's an example of the 3-bar numeric obliterator from 1846.

And then examples of three different duplex cancels from 1870, 1888 and lastly 1884.

 And lastly a philatelic Registered item from 1937 that is also a First Day Cover for the G VI 1½ brown.