IH’s owned by Terry & Diane Lewandowski of Foley MN.
The 3588 is an ‘80 model produced from 1978 till 1981, advertized at 150 hp and sticker price in 1980 was $51,000.
This 5088 is a 1984 they were manufactured from 1981-1985, they had replaced the “86” series and were replaced by the Magnum line, they were165 hp and cost new in ’84 was ~$66,000. The Lewandoski’s have an entire “88” series of IH’s restored.