![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAIgkwygyZdz3NMwaIai3YnSnU32ivDWkwgQLwYbXaA3piP6DN7qGWnp24w5A3IqSmFDrZwGdTJkS3oSVTMrDdxyRcj281CqSMtDmxsWsHMPSHvOMrfNzj4H-BiFdBgwsvQ_Uy/s400/BatmanTecReprints.jpg)
As you can see, you'd be making pretty good progress on the Batman Detective stories from 200-299 (37 issues) but outside of that you'd have a long way to go. I'd have to look at how much this changed in the next few years after 1970; I remember for example that the Two-Face stories in Detectives #66, 68 and 80 were reprinted as were the stories featuring the Monk from Tec #31 and 32. But I am pretty sure that the overwhelming majority of Batman Detective stories under 150 were never reprinted until the Archive Editions came along.
BTW, as a teenager I actually did track this stuff; I had a little box of index cards that I used to keep track of what stories had been reprinted from which issue. I remember that there were a couple of issues of Batman from the 1950s where all the stories in the issue ended up being reprinted (for example, Batman #125).
Update: Commenter Chris reminded me of DarkMark's tripod page where a whole slew of DC reprints have been catalogued.