Auction is for one matched pair (2) tubes of rare EC900 - 6HM5 - 6HA5  EI Yugoslavia made back in 80s for export. 

You can see them rebranded Siemens, Telefunken, Philips, Valvo and many others tube brands, that's why they come without prints.

Great performer in Little Dot Amps!!!

See also my other auctions and visit my store tubes.rs for more vintage tubes and tube parts!