Formally silver kanji were introduced on December 28, 1937 by Ministry of Finance Ordinance No. 60 that prohibited the use (as wartime austerity measure) of gold in inscriptions, trademarks, etc.
Excerpt from original ordinance.
"... may no longer be produced ...
4. Gold letters, gold silk, gold dust/powder, and other printing /四 金文字、金絲、金散シ其ノ他印刷用/
5. Gold lettering, trademarks and other signs /五 金文字、商標!他標識/
... ".
Ordinance No. 60 was later reinforced by Ministry of Finance Ordinance No. 51 issued on August 20, 1938.
Two cases for the 4th class Golden Kite order with gold and silver lettering.
Two cases for the 8th class Rising Sun order with gold and silver kanji.
Excerpt from original ordinance.
"... may no longer be produced ...
4. Gold letters, gold silk, gold dust/powder, and other printing /四 金文字、金絲、金散シ其ノ他印刷用/
5. Gold lettering, trademarks and other signs /五 金文字、商標!他標識/
... ".
Ordinance No. 60 was later reinforced by Ministry of Finance Ordinance No. 51 issued on August 20, 1938.
Two cases for the 4th class Golden Kite order with gold and silver lettering.
Two cases for the 8th class Rising Sun order with gold and silver kanji.