Seychelles. (Great Britain). 1955. Registered Air Mail envelope addressed to England bearing SG 177, 15c yellow-green and SG 178, 18c crimson tied by Victoria/ Seychelles date stamp, underpaid, endorsed 'T/ 52c' in blue crayon and bearing Great Britain postage due SG D50, 3d violet tied by oval Registered/ London receiver with hand-struck '3 1/2d/ I.S./ C.' on face.