Hi Ekat,
dont suppose you want to sell me that tail rotor?
If you give me the date yiou started there working, and I note you said it was before that time, I'll bet you a pint I can narrow it down as to which bolkow it was. I can tell you that someone must ahve painted a used tail rotor that colour because none of them were on aircraft in service in that colour. If you scrape a bit off it coul;d give a clue, if its yellow underneath its definitaly AWB