Lot 305 Sierra Leone (C) 1884-1891, 1896-1897 Queen Victoria Keyplate Issues, A Selection of B31 Barred Numeral Cancellations & Freetown CDS Cancel

Includes SG 24, 28, 28a, 33 and 42. 

The scarcer 1d rose red Crown CA stamp has two light wrinkles in the upper left corner. 

Gibbons lists the basic stamps at 51 GBP. Based on this, the condition, and the fact that these are fairly common cancels, we would estimate the value of the lot at $18.  The stamps offered here grade between 58-73 as follows:

Centering/Margins: 30/60, 35/60

Paper Freshness: 5/5

Colour: 5/5

Impression: 5/5

Absence of Visible Paper Flaws: 5/5

Perforations: 10/10

Cancel: 6/10, 8/10

Adjustment for mentioned faults: -10 points