T 21 plate research

T 21
Format
Dateless
Authority Issuer
Devonshire
Era
Pre-1963
Status
In Private Ownership

Price History

£0£15k£30k£45k£60kJan 2021Jan 2021Jun 2026

PWPlateworth

Current estimate

£48,548

Estimate

CCCollecting Cars

January 2021

£45,800

Sale

AUAuction

January 2021

£48,548

Sale
Approx value
£48,548

Plateworth estimate

Price Change
-5.7%

over full record

Last Sale
£45,800

January 2021

Sale Records
2

2 sources

Format Median
£55,385

56 same-format sales

Vs Format Median
-12.3%

estimate vs cohort

Plate History

T 21 is a Dateless registration. Plateworth's current estimate is £48,548 with a working range of £30,636 to £50,232, based on 2 comparable sales. The latest evidence is a sale from Collecting Cars at £45,800. 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.

  1. Likely on retention

    DVSA check

    June 2026

    DVSA has no vehicle assigned to this mark — most likely held on a retention certificate.

  2. Collecting Cars sale recorded

    Date precision: day

    January 2021

    Public sale record used by the valuation context.

    £45,800

  3. Auction sale recorded

    Date precision: day

    January 2021

    Public sale record used by the valuation context.

    £48,548

About T 21

Dateless registrations avoid an obvious vehicle age marker, which can make short combinations more flexible across prestige vehicles and long-term private ownership. The T index mark traces back to Devonshire. At 3 characters, T 21 sits in a very short collector tier.

DatelessDevonshireAge-neutralUltra-short

Plate Speak

TRI

Most likely reading: "TRI"

Other possible readings

T 21TRIT21Initials

Price Guide for this Format

56 same-format sold records across 26 plates currently loaded.

£23,000

Lowest

£55,958

Average

£128,800

Highest

Distribution

<£3k0%
£3k-£10k0%
£10k-£50k38%
£50k-£100k61%
£100k-£250k2%
£250k-£500k0%
£500k+0%