Yes, the Runge DelGrego upgrades are probably the ones to be concerned with. How many did they do? What years were they done? What 'upgrade" services did they offer? How were they marketed? I have seen a couple and they were superb. I especially remember a sbt A1S upgrade.Wonderful engraving and stunning case color,at least to me.I would imagine that in the early postwar years that if you wanted a "new fancy Parker" these 2 gentleman would have been capable of providing as fine a gun as ever left the factory.Problem is the unsigned ones,I guess,if we're talking about guns being sold as original pre-war production.
