Yes, looks like one of his convention phasers. Your photos show what appears to be the edge of a butt plate detail that was added to the master at some point -- does the end of the magazine have a recess for an ID tag sticker, and no tag? He provided static phasers for the production of STVI (in a different all black paint scheme) -- I believe his earliest convention phasers did not have this recess, but ones he made for STVI and later conventions did. Only an educated guess as I have one of each and assembled the timeline based on when previous owners bought them at cons in the 90s. BTW none of his phasers should have ID tag stickers or engraved brass plates - if there is one present it was added by someone else.