Minolta Rokkor TC 100/4

So pretty lens for mountain climbing use Rokkor TC 100/4 Triplet was obtained at 1,000 yen. Because of the oil invasion into iris blades, the function was lost in addition to moderate mold development as usual. As for external appearance, no hitting, no scratches and no parts loosing, with genuine hood was good gospel this time. After removing sticky oil on the every iris blade, complicated like puzzling procedure is waiting, reassembling them firmly at an adequate position with keeping precise opening rate according to an original marking on the fuselage, now I'm on the way to complete it killing free and boring time. Before that, lens surfaces are kept clean and transparent utmost by my  desperate efforts.