The first two photographs show copper / bronze 10 cash coins from near the end of the Qing Dynasty (@ 1902-1908 during the reign of the Kuang Hsu, the second to last emperor). They will weigh approximately 7.3-7.4 g and measure 28-29mm diameter and 1.8mm rim thickness. Because the multiple coins shown come from different parts of the empire, I will leave their individual identification for a later date when the specimens can be numbered for easier reference in an accompanying response.
The third and fourth photographs show a 1929 British trade dollar. Weight: 26.9-27.0g, 39.0mm diameter in 90% weight in silver. A 1929 specimen in VF20-XF40 condition has a catalog value of approximately $30-$80. Initially used throughout Southeast Asia in the 1895, it was used primarily in Hong Kong after 1903 when a separate Straits Settlements dollar coin was introduced.
https://www.ngccoin.com/price-guide/world/great-britain-dollar-km-t5-1895-1935-cuid-1202269-duid-1334864https://en.wikipedia.org/wiki/Trade_dollarBecause they are a legacy, it would be worthwhile to care for them to pass on to your descendants. The 10 cash coins are in are worth conserving to minimize loss of detail. Copper-containing coins can be kept from mechanical and humidity damage by enclosing them in a minimum 2mm thick ziplock bag with a silica gel pack for storage below 35% relative humidity. The 3M 1" square anti-tarnish square will help capture corrosive gases from attacking silver and copper surfaces.
