These are fairly unknown silver issues struck by The Honolulu Mint.

My previous blog about the gold version (with images)  of:

Queen Liliuokalani design. http://wp.me/p3eNTe-wk

King Kalakaua design: http://wp.me/p3eNTe-wu

The style of both coins differ slightly.

On the obverse: English vs Hawaiian. Date vs year only.

On the reverse: Placement of  words ‘IOLANI PALACE. Change in fonts. Size and detail of the palace.