The earliest dated Crown-sized coins of Queen Victoria's reign were not issued until 1893, while the 1837 date found on the obverse represents instead the year of her majesty's accession to the throne at the age of 18. Rochelle Thomas contracted Pinches to prepare dies based on the Bonomi design and that 196 specimens were struck in a variety of metals, of which just 10 pieces were struck in White Metal and 10 pieces in Tin. The NGC insert designates, "Bull-2621 ESC-327 TIN" and "Reeded Edge Pattern" however in Bull's 7th Edition of English Silver Coinage (2020), ESC-2621 is noted as "White Metal" with a "Milled edge" and a variant in tin is included with the reference number, ESC-2617 described as, In tin aluminum?No (edge) number / L&S 6 / ESC-323a. The later two references specify an alloy of aluminum. To verify the authenticity of PCGS and NGC certified coins in this listing, enter each certification number on the respective NGC or PCGS cert verification webpages: 6632265038.