This resembles our friend R2. Its roughly the same size and the arms slide in and out and the wheels collapse to make it lower. The head revolves and the only markings I can see is:
'KPT 86 China' anyone know this little fella?
thevintagetoyadvertiser.org 1970s and 80s vintage toy ads and other retro paperworks
imperialgunnery.com Vintage Star Wars action figure weapons and accessories guide