4321 OO plate research

4321 OO
Format
Reverse Dateless
Authority Issuer
Essex
Era
Unknown era
Status
In Private Ownership

Price History

£0£15k£30k£45k£60kJan 2026Jan 2026

PWPlateworth estimate

Current estimate

£19,559

Estimate

RBRegtransfers Blog

January 2026

£19,559

Sale

DSDVLA Search

January 2026

£15,760

Sale
Approx value
£19,559

Plateworth estimate

Price Change
-19.4%

over full record

Last Price Change
-£3,799

January 2026

Dealer Listings
0 shown

price-change events

Listing Variance

single listing

Cheapest Listing

No listing

Plate History

4321 OO is a Reverse Dateless registration. Plateworth's current estimate is £19,559 with a working range of £16,625 to £22,493, based on 2 comparable sales. The latest evidence is a sale from Regtransfers Blog at £19,559. No active dealer listing is shown, so the page separates the Plateworth estimate from public sale evidence. This page currently shows 2 timeline events from the loaded registration record.

  1. Regtransfers Blog sale recorded

    Date precision: month

    January 2026

    Public sale record used by the valuation context.

    £19,559

  2. DVLA Search sale recorded

    Date precision: day

    January 2026

    Public sale record used by the valuation context.

    £15,760

About 4321 OO

Reverse dateless plates place the numbers before the original local index letters, so the registration carries local authority provenance without a year marker. The OO index mark traces back to Essex. This reverse sequence was issued from the 1950s onwards as earlier dateless runs became exhausted. At 6 characters, 4321 OO is a standard-length registration for this era.

Reverse datelessEssexAge-neutralStandard length

Plate Speak

AERIOO

Most likely reading: "AERIOO"

Other possible readings

4321 OOAERIOO4321OOInitials

Price Guide for this Format

6 loaded same-format comparable prices shown until active listings are available.

£2,600

Lowest

£3,883

Average

£8,000

Highest

Distribution

<£2.5k0%
£2.5k-£10k100%
£10k+0%

Prices are based on loaded sale evidence and the Plateworth estimate. Latest evidence: January 2026.