The alpha prefix was adopted after the first million or so knives had been serialized, up to 999999 I suppose. This point was reached some time in 1980. They then went to A00001-A99999, B00001-B99999 and so forth until they ran out of alphas after Z99999. The pins went from four in the cover to three in the cover around serial #N35001. They then went to dual alphas for a while. The Uncle Henry Signature appeared around serial #X29369. When the rotation went to double alphas, the serials went to seven places. AA00001-AA99999, AB00001 and so forth. Serializing was ended after BB*****, or at least that is the highest number I have recorded so far. Not long after the 1984/5 intro of the Sharp Idea box, they dropped the serials and registration.
Serial V****** would fall sometime between 1982 and 1985.
Michael