Any idea on this lead? I.S. 2.625

[RogerDat]

I'll try and post a picture later but appears to be a small solder bar (approx. 1/4" wide) marked I.S. 2.625 the only reference I could find for it was on this site. And that had no answer on what this 2.625 stuff is, just some info on bars marked TarraCorp that the poster had also .

Stiffer than plan lead but I'm drawing a blank from Google on what it is.

[RogerDat]

Scrap yard gun to the rescue!

Sb 4.5% Sn 2.25% Pb 93.25% Sort of like extra hard WW's that already have the tin. Too bad I only found 7 lbs. More too bad that it was not solder with lots of tin.

On the other hand while at the scrap yard did manage to get 8 lbs. of solder, roll and bar for $5 so..... the hunt goes on!