His first collection was stamps.
Over the years Dyer has added to his stamps and amassed an extensive range of coins and postcards, each with a fascinating history.
A postcard written with a quill and sealed with wax dates from the time of Napoleon.
A Roman coin more than 2000 years old and other coins from ancient times. Large Russian banknotes dating from 1909 are works of art, and there's weight in a Judaen coin from the first Century and a coin from 1797 that bears the head of George III.
Dyer says there will be postcard displays of pre-1956 passenger ships, gold field mail, postal section of Australia, Guernsey, the Russian Civil War, Salvation Army, marine artists, stamp booklets, Isle of Man railways, penguins and picture postcards of Bhutan.
The decades of telegrams that date back to 1887 will be on display when they were sent by morse code.
There will be guest displays, dealer stands, collection appraisals, guest speakers, spot prizes and a cafeteria.
The Central Districts Expo, April 13, 9.30am-4pm, Community Leisure Centre, 569 Ferguson St. Enquiries and dealer table bookings to colin.dyer@xtra.co.nz