Shade or bulbs not included. Lamp in “as is” condition. It looks like the lamp wire/plug was replaced later and the original antique sockets were left intact.
Seems like a real tankard and very nicely converted. You should replace/ restore the sockets, they work but look pretty old and sound it, possible 3 way switches but only had regular bulb so couldn’t test and again for safety should be wired with new sockets. Socket read Leviton Patented 250W / 250V. A worthy piece for restoration.
This cool Tankard lamp has its wear from age and use with scratches, scuff, dings, dents, bottom felt wearing, need to update sockets and possible plug/wire, nice Patina and still looks great.
The overall measurement of the lamp is 19 5/8″ tall to top of sockets, 12 1/4″ tall to top of tankard thumb flip and bottom has 5 1/2″ diameter. The lamp has nice weight at 5 lb.
Guessing made way before 2000. Cool Old Tankard Lamp!!! Please check pictures for description and condition.