Rick W Posted December 23, 2013 Share Posted December 23, 2013 I have recently come into the possession of a Spitfire Merlin piston crown. is there any way to date them from any casting marks on the inside? There are the following marks- K12 20 (In a circle) 12 22 Any help gratefully received! Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted December 24, 2013 Share Posted December 24, 2013 I have recently come into the possession of a Spitfire Merlin piston crown. is there any way to date them from any casting marks on the inside? There are the following marks- K12 20 (In a circle) 12 22 Any help gratefully received! Rick, They will be Inspectors marks. Factories producing aircraft or components of, had resident AID Inspectors checking all production and putting their mark on. Quote Link to comment Share on other sites More sharing options...
Rick W Posted December 24, 2013 Author Share Posted December 24, 2013 Thanks Richard, so no way of knowing the date of manufacture then I assume? Quote Link to comment Share on other sites More sharing options...
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