mfg Posted February 27, 2022 Report Share Posted February 27, 2022 Very early 'STP' signs which were seen at service stations read ".....?...... Developed." 1) Bonneville.....2) German......3) Space Age....or.....4) Military Link to comment Share on other sites More sharing options...
pantera928 Posted February 28, 2022 Report Share Posted February 28, 2022 space age Link to comment Share on other sites More sharing options...
r1lark Posted February 28, 2022 Report Share Posted February 28, 2022 I'll say 'German'. Link to comment Share on other sites More sharing options...
mfg Posted February 28, 2022 Author Report Share Posted February 28, 2022 2 hours ago, pantera928 said: space age Good thought, however not "Space Age" Link to comment Share on other sites More sharing options...
mfg Posted February 28, 2022 Author Report Share Posted February 28, 2022 18 minutes ago, r1lark said: I'll say 'German'. German is CORRECT!....Developed in Germany during WWll. Link to comment Share on other sites More sharing options...
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