eBay sale recorded
Date precision: dayJune 2026
Public sale record used by the valuation context.
£129
100 X plate research
100 X
- Format
- Reverse Dateless
- Authority Issuer
- Northumberland
- Era
- 1993
- Status
- In Private Ownership
Price History
PWPlateworth
Current estimate
£3,716
EstimateEBeBay
June 2026
£129
SaleDVDVLA
December 1993
£3,100
Sale| Source | Date | Price | Type |
|---|---|---|---|
| PWPlateworth | Current estimate | £3,716 | Estimate |
| EBeBay | June 2026 | £129 | Sale |
| DVDVLA | December 1993 | £3,100 | Sale |
Plateworth estimate
December 1993 to June 2026
June 2026
2 sources
161 same-format sales
estimate vs cohort
About 100 X
Reverse dateless plates place the numbers before the original local index letters, so the registration carries local authority provenance without a year marker. The X index mark traces back to Northumberland. This reverse sequence was issued from the 1950s onwards as earlier dateless runs became exhausted. At 4 characters, 100 X is shorter than most registrations in this era.
Reverse datelessNorthumberlandAge-neutralShort format
Plate Speak
IOOX
Most likely reading: "IOOX"
Other possible readings
100 XIOOX100XInitials
Plate History
100 X is a Reverse Dateless registration. Plateworth's current estimate is £3,716 with a working range of £3,493 to £5,748, based on 2 comparable sales. The latest evidence is a sale from eBay at £129. No active dealer listing is shown, so the page separates the Plateworth estimate from public sale evidence. This page currently shows 3 timeline events from the loaded registration record.
Likely on retention
DVSA checkMay 2026
DVSA has no vehicle assigned to this mark — most likely held on a retention certificate.
DVLA sale recorded
Date precision: dayDecember 1993
Public sale record used by the valuation context.
£3,100
Price Guide for this Format
161 same-format sold records across 123 plates currently loaded.
£1,530
Lowest
£26,353
Average
£130,328
Highest
Distribution
<£3k1%
£3k-£10k9%
£10k-£50k80%
£50k-£100k10%
£100k-£250k1%
£250k-£500k0%
£500k+0%