Watch List notes:

Ceylon, Colombo, (Slave Island), Oil Yard Mill, Plantation Token, Four Halfpence (c. 1868-72), in copper alloy, J. M. ROBERTSON & CO | COLOMBO around O|Y|Y|O and a central hole, rev. elaborate scroll work, 31mm., 9.56g (Prid. 80; cf. Ford 284), trace of residual mint colour, a really good very fine, scarce.
J. M. Robertson were a coffee planting enterprise and at its zenith in 1845-48. The OYYO token was for the Oil Yard Mill where coffee curing and oil business was conducted. See next lot for another token from their joint operations at Vauxhall Mill
Estimate: £30 - £50