The exact origin of these tokens are not well documented.
Casino Slot Machine Tokens sometime probably after 1977 when Casinos were legalised in Sri Lanka and before Jackpot slot machines were banned in 1991 by President Premadasa.
They are not the regular Casino Chips. ChipGuide lists a total of 67 regular plastic chips from 20 Casinos in Sri Lanka of which only 4 were still open in 2016.
Mubarak Thaha operated the Colombo Recreation Club along with the showman Donovan Andree and later the Atlanta Club with his nephew, which was mainly a gaming club where card games were in dominance. Along with his nephew he operated a hugely successful club along with a sport book which consisted mainly of accepting wagers on Horse racing from England. Thaha was charged under the infamous Criminal Justice Commission (CJC) under draconian laws imposed by Sirimavo and Felix Dias Bandaranaike which saw a premature end to a colourful career for Thaha despite his wooing of politicians of the time.
Aloysious Mudalali - a trusted Premadasa acolyte - opened the first of the proper casinos as we now know it complete with American managers from premises opposite the Central Bank in Janadipathi Mawatha. Other players also included Nalin Fonseka and Joe Sim. Joe Sim was forced to leave the island after President Premadasa ordered the closure of all casino operations. A recent attempt to see the return of Joe Sim never materialised.
Ravi Wijeratne (Stardust and Marina) and Dhammika Perera (Ballys and Bellagio) dominate the industry in Colombo now.
More details about these tokens are being researched. If you have any please send me E-mail.