diff --git a/ROMImages/ZXSpectrum/plus3.rom b/ROMImages/ZXSpectrum/plus3.rom
new file mode 100644
index 000000000..ba17cabc3
Binary files /dev/null and b/ROMImages/ZXSpectrum/plus3.rom differ
diff --git a/ROMImages/ZXSpectrum/readme.txt b/ROMImages/ZXSpectrum/readme.txt
new file mode 100644
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--- /dev/null
+++ b/ROMImages/ZXSpectrum/readme.txt
@@ -0,0 +1,11 @@
+Per https://groups.google.com/g/comp.sys.amstrad.8bit/c/HtpBU2Bzv_U/m/HhNDSU3MksAJ :
+
+"Amstrad are happy for emulator writers to include images of our copyrighted
+code as long as the (c)opyright messages are not altered and we appreciate
+it if the program/manual includes a note to the effect that "Amstrad have
+kindly given their permission for the redistribution of their copyrighted
+material but retain that copyright"."
+
+With that in mind, Amstrad have kindly given their permission for the redistribution of their copyrighted material but retain that copyright. Material expected here, copyright Amstrad:
+
+plus3.rom	— the +2a/+3 ROM file, 64kb in size.