This is Tobago postage stamps S.G. 14-19 1882-1884.  This is the full set with extra shades and they are all in Mint Original Gum Condition and have a Watermark Crown CA.  The set includes all three listed of shades of 2 1/2d and a deeper green shade of the 4d.  They catalog at L1100++ in the Stanley Gibbons catalog.  They are absolutely wonderful items in any serious collection and extremely rare.

This item is over $100 USD so I will ship it using registered mail.