well you asked, so here goes. i've been playing since 1959, and the first bat that made an impression on me was in 1965, it was the louisville 125 sp. this bat cost $3.75, when at the time bats went for $1.50 to $2.50.
the amerola toy co. in pittsburgh pa who made aluminum que sticks made the first aluminum softball bats in 1966, as luck would have it the winter of 67-68 came the ash blight which flogged all of the ash trees made a nessary substatuts for bat materal.
the bat was the 504 orbit launcher. wooden handle, rivited head.
in the 50's and 60's the teams used to carry all of their bat in an army duffle bag. our guys were young or on disability so we were around the park and took batting practice, instead of carring all the bats we just grabbed the metal bat and we started to notice guys were hitting the crap out of the ball who otherwise not big hitters.
in 1969, louisville ky at the u-trip industrial world tourny i came to bat to lead off the second inning and i slashed a single to right with that horrific sound "PUNK". they stopped the game and accused me of using a gas pipe. we argued that it was leagle and nobody outside of pittsburgh knew of aluminum bats. the game was held up for about 5 minutes while the officials made phone calls to pittsburgh and detroit to usssa officials to see about the leagality of the bat.
then an announcement came over the loud speaker, "it's a hit!" the crowd went wild and the next pitch ii was forced out
at second. so it goes for my 15 minutes of fame.