Switzerland 1935, 20 Franken Gold, Vreneli 

(Source: http://www.numissearch.com/en/i_9225_970/Switzerland/9225-A123-970.html?breadcrumbId=122287683)

Germany Baden J. 192 gold coin 20 M 1911 G, Fried. II, ss

(Source: http://www.numissearch.com/en/i_9092_10188/20_Mark_Gold/9092-A9-188.html?breadcrumbId=101484793)

Germany Baden, 

(Source: http://www.numissearch.com/en/i_9092_10078/Baden/9092-A9-78.html?breadcrumbId=101482562)

Gold Coin Mexico

MEXIQUE. Maximilien Ier (1864-1867) Justice et bonnet phrygien. R/ Aigle 20 pesos – OR – 1872 Go, Guanajuato Fr. 124. Bel exemplaire, monnaie rare.

(Source: http://www.philasearch.com/en/i_9258_245/Mexiko/9258-A12012-245.html?breadcrumbId=96154170)

Germany:

Lübeck, 1748, 32 Shilling, ss., rifleman no. 28 a

(Source: http://www.numissearch.com/en/i_9255_1256/Luebeck_Stadt/9255-A333-1256.html?breadcrumbId=66777386)