---
title: "Mastermind keyboard overlay"
id: 54677
type: "document"
slug: "mastermind-keyboard-overlay"
url: "http://localhost/document/mastermind-keyboard-overlay/"
markdown_url: "http://localhost/document/mastermind-keyboard-overlay.md"
published_at: "2024-06-04T10:14:36+00:00"
modified_at: "2026-03-15T19:58:00+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2024/06/20240607-115412.webp"
excerpt: "1985 four-page press release from DAMCO Enterprises announcing their products related to the Rotronics Wafadrive for Timex/Sinclair computers."
category:
  - name: "Documentation"
    slug: "documentation"
    taxonomy: "category"
    url: "http://localhost/category/documentation/"
post_tag:
  - name: "Lamo-Lem"
    slug: "lamo-lem"
    taxonomy: "post_tag"
    url: "http://localhost/tag/lamo-lem/"
  - name: "Simulusion"
    slug: "simulusion"
    taxonomy: "post_tag"
    url: "http://localhost/tag/simulusion/"
  - name: "ZX80"
    slug: "zx80"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx80/"
model:
  - name: "Sinclair ZX80"
    slug: "zx80"
    taxonomy: "model"
    url: "http://localhost/model/zx80/"
document_url: "https://archive.org/details/LamoLem/Mastermind%20keyboard%20overlay"
pages: 1
document_date: "198x"
related_content:
  - id: 12141
    title: "Chest of Classics"
    type: "product"
    url: "http://localhost/product/chest-of-classics/"
document_publisher:
  - id: 11041
    title: "Lamo-Lem"
    type: "company"
    url: "http://localhost/company/lamo-lem/"
  - id: 11287
    title: "Simulusion"
    type: "company"
    url: "http://localhost/company/simulusion/"
---

# Mastermind keyboard overlay

1985 four-page press release from DAMCO Enterprises announcing their products related to the Rotronics Wafadrive for Timex/Sinclair computers.