SL/A = SEA LAND & AIR , LTD., LONDON EC3. C = (there are 9 different companies tat se this pattern) CP/LD = CHISWICK POLISH CO., LTD, LONDON W4 L = (there are 8 different companies that use this pattern) MB = (there are 8 different companies that use this pattern)
Bsed on the "Leek, Staffs" parcel postmark the "L" perfin here is probably from Wardle & Davenport who were silk manufacturers in Leek in Staffordshire.
You can, Damian, by a little research eliminate some of the companies who used the same perfin pattern or letter. For instance... a company going out of business in 1935 would not have a perfin on a George vi or ER stamp.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here