Do you know the manufacturer? Is it reliable? (Ignore the fungus)

Yeah I have one just like that, it was made by Fungus Imaging Corporation.

i made that :)

There are many companies that had 70-210mm F4-5.6 lenses in their lineup. Tokina, Tamron, Sigma, Cosina und so weiter and to confuse it all further they often outsourced production to other manufacturers. There is a bit of that stuff still going on though, but no to the same extent, but your lens is still worthless even if ultra rare and a bit of fascinating history. Optically it is not a marvel, usable yes, but soft and cheap and also in need of a cleaning which will cost more than it is worth if you are unable to do it yourself. These things are thrown in as freebies when you buy old camera gear.

>>4436614
Thanks. I found one for US$15 but no information online other than this fungus infested example pictured on an auction website. If it's in good shape, I will pull the trigger.

>>4436580 (OP)
the brand is WOOZ, it's literally written on it