Three Little Boy Figures Toys, An Astronaut, Engineer,& Gynecolgist

I found these little guys at a local Estate sale this weekend and although they had stickers with price on bottom it was stuck to the original makers name sticker so I don't know the maker, I was able to scratch off one sticker show red letters but unable to read it because it would be backwards or upside down but I included it in the pictures hoping someone that knew the maker could tell from it. They may be from Poland or Germany? They are approx 4" tall They are plastic but are on wooden stands.