Pyramid Acoustic Guitar Silver Plated Round Wound, .011 - .047, A304star rating 5Augustus WannerAugust 14, 2009The Classic Steel String as in if you really want to hear what that pre-war 0/00 Martin or L0 Gibson sounded like in the year of Manufacture, this is your string. Not some novel re-imaging but the string as it was specified all those years ago. Quality and pride were not advertising slogans but an actual fact in every pack. I own a 1927 Martin 0-21 [First Year of Steel Strings for this model] and have tried every major string brand [and some small winders as well] but have been more than Satisfied with the response of these strings. I've seen any number of guitars from the prewar period with what was left of the original strings, but never able to find the correct guages or tensions. The Pyramid A304 corrects this in a big way. Forget the willfully ignorant who claim that Silk and Steel was the standard, These are the Real Thing, the Factual Actual Truth.